Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery


This page is currently not sponsored. Click here to sponsor this page.
Na2B5O8(OH) · H2O
Crystal System:
To honor Vannoccio Biringuccio (1480–1538/9), Italian alchemist, metallurgist, politician, mine manager and foundryman; author of the Pirotechnia, his manual on metalworking, published in 1540. He is considered by some as the father of the foundry industry as De la pirotechnia is the first written account of proper foundry practice. He was in charge of casting cannons for Venice and later Florence. In 1536, he was offered a position in Rome by the Catholic Church, and in 1538 he became head of the papal foundry, and director of munitions. He was a Senator of the city of Siena in January and February of 1531.
This page provides mineralogical data about Biringuccite.

Classification of Biringuccite


E : Pentaborates
C : Phyllo-pentaborates

5 : Pentaborates

9 : Borates
1 : Borates of the alkalis and boric acid

Optical Data of Biringuccite

Biaxial (-)
RI values:
nα = 1.496 nβ = 1.539 nγ = 1.557
Measured: 62° , Calculated: 64°
Max Birefringence:
δ = 0.061
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
relatively weak

Chemical Properties of Biringuccite

Na2B5O8(OH) · H2O

Crystallography of Biringuccite

Crystal System:
Cell Parameters:
a = 11.19 Å, b = 6.56 Å, c = 20.76 Å
β = 93.89°
a:b:c = 1.706 : 1 : 3.165
Unit Cell V:
1,520.41 ų (Calculated from Unit Cell)

Type Occurrence of Biringuccite

Other Language Names for Biringuccite

Common Associates

Associated Minerals Based on Photo Data:
Nasinite1 photo of Biringuccite associated with Nasinite on

Related Minerals - Nickel-Strunz Grouping

6.EC.05NasiniteNa2[B5O8(OH)] · 2H2O
6.EC.10GoweriteCa[B5O8(OH)][B(OH)3] · 3H2O
6.EC.15P-VeatchiteSr2B11O16(OH)5 · H2O
6.EC.15VeatchiteSr2B11O16(OH)5 · H2O
6.EC.20VolkovskiteKCa4[B5O8OH]4[B(OH)3]2Cl · 4H2O
6.EC.25TuzlaiteNaCaB5O8(OH)2 · 3H2O
6.EC.35BrianroulstoniteCa3[B5O6(OH)6](OH)Cl2 · 8H2O

Related Minerals - Hey's Chemical Index of Minerals Grouping

9.1.5NasiniteNa2[B5O8(OH)] · 2H2O
9.1.6KerniteNa2[B4O6(OH)2] · 3H2O
9.1.7EzcurriteNa4B10O17 · 7H2O
9.1.8TincalconiteNa2(B4O7) · 5H2O
9.1.9BoraxNa2(B4O5)(OH)4 · 8H2O
9.1.11SborgiteNa[B5O6(OH)4] · 3H2O
9.1.12AristarainiteNa2MgB12O20 · 8H2O
9.1.13SantiteK[B5O6(OH)4] · 2H2O
9.1.14Larderellite(NH4)B5O7(OH)2 · H2O
9.1.15Ammonioborite(NH4)2[B5O6(OH)4]2 · H2O

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Biringuccite

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist: 48: 709-711.
American Mineralogist: 59: 1005-1015.

Internet Links for Biringuccite URL:
Please feel free to link to this page.

Localities for Biringuccite

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Italy (TL)
  • Tuscany
    • Pisa Province
      • Pomarance
NJMA 148 (1983), 163
Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2017, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: July 27, 2017 05:36:29 Page generated: July 22, 2017 23:02:05
Go to top of page